Mattress-filling machine



F'. CONTHADO, H. R. SWANSON AND E. M. SCHWARTZ.

MATTRESS FILLING MACHINE.

I APPLICATION FILED FEB.'II, 1920.

Patented Mar. 1, 1921.

Invenrors. Fred Contrade Hugo H. Swcmrvlson.v ErK M. 5cm/warb;y byivmm UNITED STATES PATENT OFFICE.

FRED CQNTRADO, OF BOSTON, HUGO REINHOLD SWANSON, OF SOMERVILLE, AND ERIK MAURITZ SCHWARTZ, OF CAMBRIDGE, MASSACHUSETTS.

MATTRESS-FILLING MACHINE.

investi i.

Specification of Letters Iatent.

Patented Mar. 1, 1921.

Application led February l1, 1920. vSerial. No. 358,008.

To zZZ whom it may concern:

Be. it known that we, FRED CONTRADG, Huso l. SwaxsoN and Emu M. SCHWARTZ, citizens of the United States, and residents, respectively, of Boston, county of Suifolk, :citate or Massachusetts. Somerville. county of iiiddlesex, State of Massachusetts, and Cambridge. county of Middlesex, State of lll'assachnsetts, have invented 1lnipmvements in Mattressdiilling Machines. oi' which the following description, in connection with the accompanying drawing, is a specification. like characters on the drawing representing like parts. I

This invention has for its object to provide a novel mattress-filling machine ot' the type arranged to deliver the mattress filling material to the mattress by means of a blast of air, and the object of the invention is to provide an improved machine of this type which is extremely simple in construction; which operates to thoroughly fluff up the filling material before introducing it into the mattress and separate therefrom any seeds, sticks or other similar foreign matter. and which has other advantages, all as will beV more fully hereinafter set forth.

in order to give an understanding or" our invention, we have illustrated inl the drawings aA selected embodiment thereof which will now be described, after which the novel -features will be pointed out in the appended claims.

l'n the drawings, Figure l is a side view with a portion broken out showing an apparatus embodying our invention;

2 is a top plan view of the tank;

Fig. 3 is a section on the line 3 3, Fig. '1.

Fig. il is a transverse sectional view through the delivery end of the pipe 8.

Our apparatus comprises a tank or chamber l which is open at the top. as shown at 2. the open top preferably being provided with a fine screen 3. The apparatus also 1ncludes a fan or blower i having its inlet connected to the bottom of the tank by a suitable pipe 5 and having its discharge connected to a delivery pipe 6 which is branched, one branch 7 thereof extending into the top of the tank and the other branch 8 being constructed to have a mattress to be filled secured thereto.

rThe pipe 5 is provided with a filling hopper S which leads thereinto, said hopper having a cover or closure 10 by which it may be closed. This hopper is for t-he purpose of introducing the mattress filling material into the pipe 5. Y

The branch pipe 6 is provided with a valve or gate ll situated at the junction of the branches T and 8, Said valve being con-A structed so as to close either branch for a purpose presently to be described.

The chamber l is provided near its bottom with a perforated partition l2, said partition being situated below the point where the pipe 5 communicates with said chamber. The apertures in this partition are of suilicient size to permit seeds, sticks and similar foreign material to pass therethrough. The branch S is shown as extending directly through the tank 1, and the end thereof is provided with clamping means 13 by which an open end of a mattress let to be filled may be secured thereto. This means may assume various forms without departing from the invention. Te have herein illustrated a clamp comprising two clamping jaws 13 which clamp the mouth of the mattress to the end of the pipe. In the operation of the device the cover 10 of the hopper, 9 will first be removed and a quantity of the material used for filling the mattress will be inserted through the hopper into the pipe 5. The hopper is then closed and the gate ll is turned into the full line position, Fig. l, so as to close the branch 8 while leaving the branch 7 open. The fan is then set in operation, and this will cause anaircurrent-to circulate in the direction of the arrows. This will result in drawing the filling material through the fan and delivering it to the top of the tank 1 where it settles to the bottom and is withd awri Iagain through the pipe 5. As the filling material is passed through the fan, it becomes broken or fluffed up, and any seeds', stems, sticks or other similar material may be thoroughly separated from the flui'y material.

As the filling material passes into the chamber l it will settle gradually to the bottom and the heavy ingredients, such as the seeds. stems, etc., will fall on the grating l2 and pass through the holes therein, while, the lighter fluffy material which is desirable for filling mattresses will be again i taken through the fan. By thus continuously passingthe material through the fan for 4a short time, it becomes entirely freed from any sticks, seeds. stems, etc., and assumes an extremely light and lu'll'y condi tion. The seeds. Sticks. stems.r ete. become separated and drop onto and through the grating,r l2 so that after a short time the material not only tlutl'ed up tothe desired point, but is also separated from the undesirable ingredients. After this operation has been carried on for a, sutlicient length of time the mattress l will be attached to the end of the branch 8 and the gate, 11 will be shifted into the dotted line position, therebyT directing the tluti'ed-up till'- ingr material into the mattress.

If desired the mattress may be placed on a suitable weighing apparatus 15 so that it can be given the desired weight- It' the amount ot' material which is lirst introduced in the hopper S) is insufficient to properl'i' till the mattress. then the gate il may bc .shifted into position to close the branch H and an added quantit).y ot' material can be delivered to the pipe 5 through the hopper 9. After this added material has been sent around the circuit a suiiicient number of times to properly ltifli' it up and fr it from any sticks or stems, then such material can be introduced into the mattress bj? shifting the gate l1. It will thus be observed that our apparatus not only tiutfs up the material, but also separates it from the ing a door `1G through which access can he had to said tank if desired.

yWhile we have illustrated one selected embodiment of our invention, We do not wish to be limited to the constructional featurcs `shown.

We claim:

l. ln a mattrcswlillin;A machine. the conibination with a chamber open at its top, of

'the chamber to the fan inlet` said pipe having a llling hopper coxmnnnicating therewith. a closure -for said hopper. a delivery pipe connected to the fan discharge. said deliver)r pipe being branched and one branch leading into the chamber near its top and the other having' provision for attaching! a mattress thereto. and a gate to close either branch.

2l. In a mattress-idling machine. the combination with a chamber open at it top7 of a fine screen acrossthe opening. a grating -within the chamber near the bottom thereof'. a fan` a pipe connectingr the cham! her above the grating to the tan inlet, `said pipe ha\'in, r means for introducing mattress-filling material thcrcinto. a branched delivery pipe connected to the fan discharge7 one branch leading into the chamber near the top and the vother havingY provision for attaching a mattress thereto, and a irate for closing' either branch.

ln testimony whereof. we have signed our names to this specification.

FRED CONTRADO. HUGO RTNHOLD SNANSQN. ERIK MAURITZ SCHWARTZ. 

